In the color coding of LEDs, AMBER indicates ____.

a. starting
b. control voltage present
c. shorted SCR
d. phase loss


a. starting

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____________________ memory is where the status (ON or OFF) of all input and output devices is stored.

Fill in the blank(s) with the appropriate word(s).

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The instantaneous direction of current at a specific moment is known as _____.

a. hysteresis b. polarity c. impedance d. internal resistance

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The three phases of the swine industry are ____________________, growing, and finishing.

Fill in the blank(s) with the appropriate word(s).

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Some electric valve actuators/operators are designed so that lubrication is ________ inside the gearbox housing

A) combined with water B) rarely used C) packed D) sprayed

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